Eugene i



(No Model.)

E. D. MANN.

` WINDOW.

No. 309,636. 4Patented Deo. 23, 1884.

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EUG-ENE D. MANN, OF NEV YORK, N. Y.

VJINDOW.

SPECIFICATION forming part of Letters Patent No. 309,636, dated December23, 1884.

(No model.)

To all whom it may concern:

Beit known that I, EUG-ENE D. MANN, of the city, county, and State ofNew York, have invented certain new and useful Improvements lin Sashesfor Car-Vindows, of which the following is a full, clear, and exactdescription.

This invention consists in a sash or glazed frame for car-windows ofpeculiar construction, and in which double panes of glass separated fromeach other are used, the same forming or leaving a dead-air7 spacebetween them, and having` combined with them and with the frameduplicate glazing-strips and soft or flexible beddings for the panes andglazing-strips, substantially as hereinafter described, and whereby thefullest advantages of a dead-air space, as affecting the temperature ofthe car, and in other respects, are obtained, and moisture and dust areefl'ectually excluded from between the glasses to impair l visionthrough them, andother advantages areV secured.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in. which similar letters of reference indicatecorresponding parts in both the gures.

Figure l represents a face View of a glazed car-window sash completeconstructed in accordance with my invention; and Fig. 2, a partialsect-ion, upon a larger scale, ol" the same.

A is the frame proper, made ol' wood or any other suitable material; BB, ,the glasses, and C C the glazing-strips which hold the glasses inthe frame.

The frame A is constructed with longitudinal rabbets c c on both sidesof its inner edge throughout its height and width, or, in other words,in each member of it. This leaves a center tongue, I), throughout thewhole inner marginal portion ofthe frame to serve as a parting strip orstop between the two panes of glass B B, that, seated within the rabbetsc c, leave a dead-air space, d, between them.

The glazing-strips C C are constructed with a shoulder, c, on theirouter margins, to forni a liush or close and even nish with thesides ofthe frame A, and to leave an inner clamping space or cavity between saidstrips and the frame for one or more thicknesses, preferably doublethicknesses, of plush, velvet, cloth, or other suitable soft andflexible material, arranged to form beddings D D for the edges and innerface portions of the glasses,which enter within the rabbets a c, to restagainst. These soft and flexible beddings D D, for both thepanes andglazing-strips, serve to efl'ectually exclude both moisture and dustfrom entering within the dead-air space or chamber d to impair theefficiency of said chamber and vision through the panes, theinner facesol' which are inaccessible for cleaning. Small nails or pins f aredriven through the glazing-strips Gand soft beddings D, to securelyfasten both to their places in the frame A.

I am aware that two panes of glass have been secured together, with anair-space between them,and then placed in a window-sash in the samemanner that single panes'are; also, that double panes of glass have hadsheets of muslin placed between them, the said double panes being placedin the sash in the usual manner; also, that the panes of glass have beendouble in a sash, in the sense that the edges overlap, and that saidpanes slide by each other, and I do not desire to claim any suchconstruction as of my invention.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patentl. Ina car-window sash, the l'ralne A,constructed with rabbets au on both sides of and all around orthroughout its inner margin, leaving a centrally-arranged orintermediate tongue, b, between said rabbets, in combination with thepanes B B, arranged to leave a dead-air space, d, lbetween them, theglazingstrips C G, and the beddings D D, of plush, cloth, or other softand llexible material, whereby moisture and dust are eff'ectuallyexcluded from the dead-air space between the frames, essentially asherein set forth.

2. The glazing-strips CG, constructed with a shoulder, c, on their outermargins, in combination with the double-rabbeted frame A of the sash,the separated panes B B, and lche bedding-S D D, of plush, cloth, orother soft secured in place Within the mbbeted frame, and exblematerial, arranged to pass Wit-hin substantially as specified.

the glazing-strips, and outside the edges and EUGENE D. MANN. inner faceportions of the glasses which enter l Witnesses:

strips and panes, and the whole may be readily y Within the rabbets ofthe frame, whereby the EDG-AR TATE, same beddings serve for both theglazng- ALFRED H. DAVIS.

